*{
    margin: 0;
    padding: 0;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
    color: #000;
}
body{
    background-color: #99d9ea;
}
/* 大标题 */
.title{
    height: 60px;
    line-height: 60px;
    font-size: 40px;
    font-weight: bolder;
    padding: 15px 45px;
}
/* 状态栏 */
.status{
    position: relative;
    width: 1534px;
    height: 30px;
    border: 1px solid slategrey;
    display: flex;
}
.status .left, 
.status .center, 
.status .right{
    font-size: 14px;
    line-height: 30px;
    position: absolute; 
}
.status .left{
    left: 56px;
}
.status .center{
    left: 585px;
} 
.status .right{
    right: 56px;
}
/* 选项卡导航栏 */
.body {
    display: flex;
    position: relative;
}
.body #nav{
    height: 595px;
    width: 170px;
    border-right: 1px solid slategrey;
}
.body #nav li{
    border-bottom: 1px solid slategrey;
}
.body #nav li button{
    width: 170px;
    height: 50px;
    background-color: #99d9ea; 
    font-size: 20px;
    border: 0;
}
.body #nav li button:hover{
    cursor: pointer;
    transform: scale(1.2);
    color: cadetblue;
    border: 1px solid slategrey;
}
#container .tab{
    width: 1340px;
    height: 578px;
    box-sizing: border-box;
    margin: 10px;
    position: relative;
}